Title :
4.7-THz local oscillator for SOFIA based on a quantum-cascade laser
Author :
Richter, H. ; Greiner-Bar, M. ; Rosner, K. ; Semenov, Alexander ; Wienold, M. ; Schrottke, L. ; Biermann, Klaus ; Grahn, H.T. ; Hubers, Heinz-Wilhelm
Author_Institution :
Inst. of Planetary Res., German Aerosp. Center (DLR), Berlin, Germany
Abstract :
We report on the development of a 4.7-THz local oscillator (LO) for the heterodyne spectrometer GREAT on SOFIA. The design of the LO and its performance in terms of output power, frequency accuracy, frequency stability, and beam profile as well as its implementation in GREAT will be presented.
Keywords :
oscillators; quantum cascade lasers; spectrometers; 4.7-THz local oscillator; SOFIA; beam profile; frequency stability; heterodyne spectrometer GREAT; molecular rotational line; quantum-cascade laser; Absorption; Astronomy; Laser beams; Laser stability; Local oscillators; Power generation; Quantum cascade lasers;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956456
